CN102111029A - Permanent magnet motor rotor structure adopting stamping components to fix permanent magnet - Google Patents
Permanent magnet motor rotor structure adopting stamping components to fix permanent magnet Download PDFInfo
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- CN102111029A CN102111029A CN 201110047846 CN201110047846A CN102111029A CN 102111029 A CN102111029 A CN 102111029A CN 201110047846 CN201110047846 CN 201110047846 CN 201110047846 A CN201110047846 A CN 201110047846A CN 102111029 A CN102111029 A CN 102111029A
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- permanent magnet
- punch
- rotor yoke
- permanent magnets
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Abstract
The invention discloses a permanent magnet motor rotor structure adopting stamping components to fix permanent magnets, which belongs to the technical field of motors. The permanent magnet motor rotor structure solves the problem that the fastening mode of surface-mounted type permanent magnets of a permanent magnet rotor is complex in process. P permanent magnets are uniformly distributed on the upper edge of an excircle surface of a rotor yoke of the permanent magnet motor rotor structure along the circumferential direction. The permanent magnet motor rotor structure also comprises P stamping components, wherein two longitudinal ends of a base of the stamping components are provided with arch springings protruding towards the bottom part respectively, and two transverse ends of the base are provided with fly-wings protruding towards the top part respectively; one stamping component is arranged between every two adjacent permanent magnets, a base of the stamping component is embedded between the two adjacent permanent magnets, and the longitudinal direction of the base is parallel to the axial direction of the rotor yoke; the two arch springings are fixedly connected with the rotor yoke through bolts respectively; and internal surfaces of two fly-wings of each stamping components are pressed on two side surfaces of two permanent magnets adjacent to the internal surfaces respectively, and are in tight fit to clamp the side surfaces of two adjacent permanent magnets. The permanent magnet motor rotor structure is suitable for fixing the permanent magnets on a permanent motor rotor.
Description
Technical field
The present invention relates to a kind of rotor structure for permanent magnet motor that adopts the punch fixed permanent magnet, belong to technical field of motors.
Background technology
The surface-mount type p-m rotor is the magneto rotor structure form of extensive employing, it directly is bonded in permanent magnet the surface of rotor yoke, and to twine with epoxy resin at the outer round surface of permanent magnet be that the glass fibre of binding material tightens up permanent magnet, perhaps the outer round surface cover Thin Stainless Steel tube at permanent magnet tightens up permanent magnet, this common cost of way that tightens up permanent magnet is higher, and complex process.
Summary of the invention
The objective of the invention is problem, a kind of rotor structure for permanent magnet motor that adopts the punch fixed permanent magnet is provided for the mode that the tightens up complex process of the permanent magnet that solves the surface-mount type p-m rotor.
The present invention includes a rotor yoke and P permanent magnet, P the permanent magnet that along the circumferential direction evenly distribute on the outer round surface of rotor yoke, P is the number of poles of described magneto,
It also comprises P punch, described punch is by base, two arch springings and two integral structures that all-wing aircraft is formed, vertical two ends of base have an arch springing that protrudes to the bottom respectively, and the transverse ends of base has an all-wing aircraft to top bump respectively;
A punch is set between every two adjacent permanent magnets, the base of described punch is embedded between the two adjacent permanent magnets, the axially parallel of the vertical and rotor yoke of described base, two arch springings are fixedlyed connected with rotor yoke by bolt respectively, the inner surface of two all-wing aircrafts of each punch is pressed in respectively on the side of two permanent magnets that are adjacent, and closely cooperate, the side clamping of two adjacent permanent magnets.
Advantage of the present invention is: the present invention adopts punch to come the permanent magnet on the permanent magnet machine rotor positioned and tightens up, it realizes reliable location to permanent magnet by two all-wing aircrafts and two arch springings, make the stability of permanent magnet stronger, can further satisfy magneto requirement in use, the present invention has the following advantages:
1, compare with the existing permanent magnet mode of tightening up, the indexing accuracy height that permanent magnet of the present invention is fixing adopt punch simple to the technology that permanent magnet tightens up, and the cost of punch is low and manufacturing process is simple;
2, the punch that adopts does not take the inter-air space between motor stator and the rotor;
3, can solve the problem that tightens up of the axial polylith permanent magnet of rotor;
4, can not cause supplementary load loss.
Description of drawings
Fig. 1 is the structural representation that has the motor of rotor structure of the present invention; 5 expression stators among the figure;
Fig. 2 is the partial enlarged drawing of Fig. 1;
Fig. 3 is the front view of punch;
Fig. 4 is the vertical view of Fig. 3;
Fig. 5 is the A-A profile of Fig. 4;
Fig. 6 is the syndeton schematic diagram of rotor yoke and punch;
Fig. 7 is the B-B profile of Fig. 6;
Fig. 8 is for being provided with the structural representation of straight trough on the rotor yoke;
Fig. 9 is the C-C profile of Fig. 8;
Figure 10 is provided with the structural representation of stop for rotor yoke;
Figure 11 is the D-D profile of Figure 10;
Figure 12 is the structural representation of execution mode three;
Figure 13 is the E-E profile of Figure 12;
Figure 14 is the structural representation of execution mode four described punch;
Figure 15 is the F-F profile of Figure 14;
Figure 16 is for being provided with the structural representation of straight trough on the execution mode four pairing rotor yokes;
Figure 17 is the G-G profile of Figure 16;
Figure 18 is the structural representation that execution mode four described punch are connected with rotor yoke;
Figure 19 is the H-H profile of Figure 18;
Figure 20 is the structural representation of the punch when being used to adopt tangential misconstruction that permanent magnet is installed;
Figure 21 is the I-I profile of Figure 20;
Figure 22 is provided with the structural representation of straight trough for the rotor yoke that adapts with Figure 20;
Figure 23 is the J-J profile of Figure 22;
The structural representation of Figure 24 for punch shown in Figure 20 and rotor yoke shown in Figure 22 are installed together;
Figure 25 is the K-K profile of Figure 24.
Embodiment
Embodiment one: present embodiment is described below in conjunction with Fig. 1 to Fig. 4 and Fig. 7 and Fig. 8, present embodiment comprises rotor yoke 1 and P permanent magnet 2, P the permanent magnet 2 that along the circumferential direction evenly distribute on the outer round surface of rotor yoke 1, P is the number of poles of described magneto
It also comprises P punch 3, described punch 3 is by base 3-1, two arch springing 3-2 and two integral structures that all-wing aircraft 3-3 forms, vertical two ends of base 3-1 have an arch springing 3-2 who protrudes to the bottom respectively, and the transverse ends of base 3-1 has an all-wing aircraft 3-3 to top bump respectively;
A punch 3 is set between every two adjacent permanent magnets 2, the base 3-1 of described punch 3 is embedded between the two adjacent permanent magnets 2, the axially parallel of the vertical and rotor yoke 1 of described base 3-1, two arch springing 3-2 are fixedlyed connected with rotor yoke 1 by bolt respectively, the inner surface of two all-wing aircraft 3-3 of each punch 3 is pressed in respectively on the side of two permanent magnets 2 that are adjacent, and closely cooperate, the side clamping of two adjacent permanent magnets 2.
Present embodiment adopts two all-wing aircraft 3-3 of punch 3 to press solidly permanent magnet 2, and punch 3 is to fixedly connected with rotor yoke 1 by bolt.Described punch 3 can adopt the non-magnetic conductive steel plate to form through punching out, pressure shape, two arch springing 3-2 are connected with base 3-1's, make punch 3 be rendered as the arch that base 3-1 is the state that arches upward, two arch springing 3-2 are square, each arch springing 3-2 is provided with counterbore, fixes to adopt bolt and rotor yoke 1.
Embodiment two: present embodiment is described below in conjunction with Fig. 5 and Fig. 6, present embodiment is further specifying execution mode one, present embodiment also comprises two end plates 4, described two end plates 4 are annular, and be separately positioned on the axial two ends of rotor yoke 1, with P permanent magnet 2 clamping vertically.Other is identical with execution mode one.
The described end plate 4 of present embodiment can further guarantee permanent magnet 2 stablizing of position in the axial direction, and end plate 4 can pass through screw with rotor yoke 1.
Embodiment three: present embodiment is described below in conjunction with Fig. 9 to Figure 12, present embodiment is further specifying execution mode one, present embodiment also comprises an end plate 4, described end plate 4 is an annular, be arranged on an axial end of rotor yoke 1, the described rotor yoke 1 axial other end is provided with stop 1-1, and described end plate 4 and stop 1-1 are with P permanent magnet 2 clamping vertically.Other is identical with execution mode one.
Present embodiment direct car on rotor yoke 1 goes out a stop 1-1, and it can save an end plate 4 described in the execution mode two, prevents the axial dipole field of permanent magnet 2.
Embodiment four: present embodiment is described below in conjunction with Figure 13 to Figure 24, present embodiment is further specifying execution mode three, described punch 3 axially is divided into two sections or multistage along rotor yoke 1, every section transverse ends has an all-wing aircraft 3-3 to top bump respectively, is the auxiliary arch springing 3-4 that protrudes to the bottom between every adjacent segment.Other is identical with execution mode three.
For the long permanent magnet machine rotor of axial dimension, be the strength and stiffness that guarantee that permanent magnet 2 tightens up, punch 3 can be set to the multiple spot fastening structure, promptly except that two arch springing 3-2 at two ends, auxiliary arch springing 3-4 is set respectively between its axial segmentation, auxiliary arch springing 3-4 can not cause the increase of rotor axial size, the number that auxiliary arch springing 3-4 is provided with can depend on the needs, on the rotor yoke 1 with the corresponding position of auxiliary arch springing 3-4, mill out corresponding straight trough 1-2 equally, and adopt screw and rotor yoke 1 to fix.
Some motor is in order to suppress torque fluctuation, the mode that adopts permanent magnet 2 tangentially to shift to install, in this electric machine structure, punch 3 can tangentially shifting to install with permanent magnet 2, carry out screw type tangential skew, this mode has solved the problem that tightens up of wrong utmost point permanent magnet 2 on the rotor, mills out corresponding straight trough 1-2 this moment equally on rotor yoke 1.
Embodiment five: below in conjunction with Fig. 7 to Figure 10 present embodiment is described, present embodiment is for to the further specifying of execution mode one, two or three, and position corresponding with arch springing 3-2 on the described rotor yoke 1 is provided with straight trough 1-2.Other is identical with execution mode one, two or three.
Described straight trough 1-2 can mill out on rotor yoke 1 by the number of poles calibration of described magneto, is used for cooperating with the arch springing 3-2 of punch 3, embeds and fixing arch springing 3-2, and passes through bolt.
The present invention is when assembling, can be earlier the arch springing 3-2 of punch 3 be embedded corresponding straight trough 1-2, assemble bolt then after, row pushes permanent magnet 2 in the adjacent all-wing aircraft 3-3 of adjacent two punch 3 again, then bolt is tightened, repeated this process until installing whole permanent magnets 2.
Described straight trough 1-2 can guarantee the tangential distribution precision of permanent magnet 2, guarantees that the height of arch springing 3-2 part can not disturb the radial dimension of permanent magnet 2, and helps transmitting torque.
Embodiment six: present embodiment is described below in conjunction with Figure 15, Figure 16, Figure 21 and Figure 22, present embodiment is for to the further specifying of execution mode four, and position corresponding with arch springing 3-2 and auxiliary arch springing 3-4 on the described rotor yoke 1 is provided with straight trough 1-2 respectively.Other is identical with execution mode four.
The described straight trough 1-2 of present embodiment is used for embedding and fixing auxiliary arch springing 3-4.
Described straight trough 1-2 can guarantee the tangential distribution precision of permanent magnet 2, guarantees that the height of arch springing 3-2 part can not disturb the radial dimension of permanent magnet 2, and helps transmitting torque.
The present invention is not limited to above-mentioned execution mode, can also be the reasonable combination of technical characterictic described in the respective embodiments described above.
Claims (6)
1. rotor structure for permanent magnet motor that adopts the punch fixed permanent magnet, it comprises rotor yoke (1) and P permanent magnet (2), P the permanent magnet (2) that along the circumferential direction evenly distribute on the outer round surface of rotor yoke (1), P is the number of poles of described magneto, it is characterized in that:
It also comprises P punch (3), the integral structure that described punch (3) is made up of base (3-1), two arch springings (3-2) and two all-wing aircrafts (3-3), vertical two ends of base (3-1) have an arch springing (3-2) that protrudes to the bottom respectively, and the transverse ends of base (3-1) has an all-wing aircraft to top bump (3-3) respectively;
A punch (3) is set between every two adjacent permanent magnets (2), the base (3-1) of described punch (3) is embedded between the two adjacent permanent magnets (2), the axially parallel of the vertical and rotor yoke (1) of described base (3-1), two arch springings (3-2) are fixedlyed connected with rotor yoke (1) by bolt respectively, the inner surface of two all-wing aircrafts (3-3) of each punch (3) is pressed in respectively on the side of two permanent magnets (2) that are adjacent, and closely cooperate, the side clamping of two adjacent permanent magnets (2).
2. the rotor structure for permanent magnet motor of employing punch fixed permanent magnet according to claim 1, it is characterized in that: it also comprises two end plates (4), described two end plates (4) are annular, and be separately positioned on the axial two ends of rotor yoke (1), with P permanent magnet (2) clamping vertically.
3. the rotor structure for permanent magnet motor of employing punch fixed permanent magnet according to claim 1, it is characterized in that: it also comprises an end plate (4), described end plate (4) is an annular, be arranged on an axial end of rotor yoke (1), the axial other end of described rotor yoke (1) is provided with stop (1-1), and described end plate (4) and stop (1-1) are with P permanent magnet (2) clamping vertically.
4. the rotor structure for permanent magnet motor of employing punch fixed permanent magnet according to claim 3, it is characterized in that: described punch (3) axially is divided into two sections or multistage along rotor yoke (1), every section transverse ends has an all-wing aircraft to top bump (3-3) respectively, is the auxiliary arch springing (3-4) that protrudes to the bottom between every adjacent segment.
5. according to the rotor structure for permanent magnet motor of claim 1,2,3 described employing punch fixed permanent magnets, it is characterized in that: described rotor yoke (1) is gone up the position corresponding with arch springing (3-2) straight trough (1-2) is set.
6. the rotor structure for permanent magnet motor of employing punch fixed permanent magnet according to claim 4 is characterized in that: described rotor yoke (1) is gone up the position corresponding with arch springing (3-2) and auxiliary arch springing (3-4) straight trough (1-2) is set respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110047846A CN102111029B (en) | 2011-02-28 | 2011-02-28 | Permanent magnet motor rotor structure adopting stamping components to fix permanent magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110047846A CN102111029B (en) | 2011-02-28 | 2011-02-28 | Permanent magnet motor rotor structure adopting stamping components to fix permanent magnet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102111029A true CN102111029A (en) | 2011-06-29 |
| CN102111029B CN102111029B (en) | 2012-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110047846A Expired - Fee Related CN102111029B (en) | 2011-02-28 | 2011-02-28 | Permanent magnet motor rotor structure adopting stamping components to fix permanent magnet |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103490535A (en) * | 2013-10-12 | 2014-01-01 | 南车株洲电机有限公司 | Permanent magnet motor and permanent magnet holder |
| CN103887906A (en) * | 2012-12-20 | 2014-06-25 | 罗伯特·博世有限公司 | Device for holding magnet in electrical machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201409020Y (en) * | 2009-05-06 | 2010-02-17 | 无锡顶一电机有限公司 | Radial magnetic steel doubly-salient-pole mixed excitation motor |
| JP2010178442A (en) * | 2009-01-28 | 2010-08-12 | Hitachi Ltd | Outer rotation type permanent magnet rotary electric machine and elevator apparatus using same |
| CN101127461B (en) * | 2007-07-13 | 2010-09-08 | 南京航空航天大学 | Mixed excitation dual protruding pole brushless DC generator |
-
2011
- 2011-02-28 CN CN201110047846A patent/CN102111029B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101127461B (en) * | 2007-07-13 | 2010-09-08 | 南京航空航天大学 | Mixed excitation dual protruding pole brushless DC generator |
| JP2010178442A (en) * | 2009-01-28 | 2010-08-12 | Hitachi Ltd | Outer rotation type permanent magnet rotary electric machine and elevator apparatus using same |
| CN201409020Y (en) * | 2009-05-06 | 2010-02-17 | 无锡顶一电机有限公司 | Radial magnetic steel doubly-salient-pole mixed excitation motor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887906A (en) * | 2012-12-20 | 2014-06-25 | 罗伯特·博世有限公司 | Device for holding magnet in electrical machine |
| CN103490535A (en) * | 2013-10-12 | 2014-01-01 | 南车株洲电机有限公司 | Permanent magnet motor and permanent magnet holder |
| CN103490535B (en) * | 2013-10-12 | 2016-05-25 | 南车株洲电机有限公司 | Magneto and permanent magnet retainer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102111029B (en) | 2012-09-26 |
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Granted publication date: 20120926 Termination date: 20130228 |